Futrus was one of the high-ranked angels, Allah had sent him on a mission somewhere but he procrastinated, so Allah (swt) broke (one of) his wings and threw him on an island.

When Husain (as) was born, Allah (swt) sent Jibraeel with one thousand angels to congratulate the Messenger of Allah (saww) on the birth of Husain (as) and to inform him of the status of Husain (as).

When Jibraeel passed by Futrus, Futrus asked him, "Where are you going?"

Jibraeel replied, "Allah has bestowed a son on His Prophet (saww). All the inhabitants of the world are overjoyed about this news. So Allah (swt) has sent me to congratulate him and tell him the status of his son in Allah's (swt) eyes."

Futrus asked, "Would you take me with you to the Prophet (saww) so I can ask him to intercede on my behalf because he is generous."

So Jibraeel brought the angel to the Messenger of Allah (saww) and said,"Futrus was one of the high-ranked angels, Allah had sent him on a mission somewhere but he procrastinated, so Allah (swt) broke (one of) his wings and threw him on an island. He has come to you to ask that you intercede on his behalf."

The Messenger of Allah (saww) prayed 2 rakats of salaat, after which he said,"O Allah! I ask You by the right of anyone who has any rights on You, and I ask you by the right of Muhammad (saww) and his family (as) to give Futrus his wing back and answer the prayers of Your Prophet (saww), and make it (this incident) a proof for all of the worlds."

Allah (swt) accepted the prayer of the Prophet (saww), and told him through revelation to order Futrus to touch Husain (as) with his broken wing.

The Prophet (saww) told Futrus, "Rub your broken wing on Husain (as)." Futrus did as he was told and his wing was fixed.

Futrus said, "Praise be to Lord who bestowed his favor on me through You, O Messenger of Allah (saww)."

The Prophet (saww) asked Futrus, "Where will you go now?"

Futrus replied, "Jibraeel told me about the land on which this new born baby will be killed, so I have asked my Lord to appoint me as Husain's (as) caliph on that land."

The Prophet (saww) continued,Futrus is delegated to the grace of Husain (as) and whenever any slave of Allah (swt) mentions Husain (as) or whenever anyone shows his love or support for his (Husain's) father with his sword or his tongue, Futrus comes to my grave (Prophets grave) and says, "O Purified soul! This slave - and he will mention the (person's) name - loves Husain (as) and loves his father with his heart, tongue and sword."

Then the angel who is responsible for Salawat will reply to Futrus, "Convey the Salaam of Muhammad (saww) to this slave and tell him that if he dies with this belief, you (Futrus) will take him to Paradise."